Doorstop device



Dec. 23, 1969 w, BORGEN l -f 3,484,891

DOORSTOP DEVICE Filed Oct. 23, 1965 /M/f/VTOA? h//LL mw E 5026EA/ United States Patent O 3,484,891 DOORSTOP DEVICE William E. Burgen, 3336 Pedersen Drive,

Omaha, Nebr. 68144 t Filed Oct. 23, 1965, Ser. No. 503,599

Int. Cl. Ef 5/06 U.S. Cl. 16-86 5 Claims ABSTRACT 0F THE DISCLOSURE SUMMARY The present invention relates to a doorstop adapted to be mounted in alignment with a protuberance on a swingable door, such as a doorknob, for preventing damage to the wall by the protuberance, which is extremely simple to assemble and which hides the securing element for securing the device to the Wall, thereby eny hancing the devices ornamental appearance.

This invention, as well as commercially available doorstop devices, includes a housing having an opening formed therein, a resilient element mounted in the housing and projecting through the opening and a back plate secured to the housing for holding the element therein. However, to obviate the utilization of screws or the like to fasten the back plate to the housing, a flat element or split ring, deformable in a single plane, is used as a holding unit thus substantially facilitating the assembly of the device.

This invention relates generally to a wall guard and more particularly to a doorstop device.

An object of this invention is the provision of a doorstop device` which is mountable on the wall to prevent damage thereto by the doorknob of a swinging door.

Another object of this invention is the provision of a doorstop device which is extremely simple to assemble.

A further object of this inveniton is the provision of a doorstop device wherein the securing element thereof is hidden, thereby providing a structure which is ornamental in appearance.

Another object of this invention is to provide a doorstop device which will protect the locking device installed in a doorknob from being damaged.

A further object of this invention is the provision of a doorstop device which is economical to manufacture, extremely simple to assemble, functional in use, and simple but rugged in construction.

These objects and other features and advantages of this invention will become more readily apparent upon reference to the following description, when taken in conjunction with the accompanying drawings, wherein:

FIG. l is a fragmentary perspective view of a door and a wall, with a doorstop device of this invention mounted thereon;

FIG. 2 is a fragmentary side plan view of a wall with a doorstop device of this invention mounted thereon;

FIG. 3 is a perspective view of the doorstop device illustrating the parts in unassembled relation to each other;

FIG. 4 is a sectional view as taken along the line 4--4 in FIG. 2;

FIG. 5 is an enlarged fragmentary sectional view illustrating the seating of the split ring; and

FIG. 6 is a perspective view of a modification of the resilient member.

Referring now to the drawings, a fragmentary view of a door FIG. 1 is illustrated with a doorknob 11 and a latch 12 attached thereto. In close proximity to the door 12, is illustrated a fragmentary view of a wall 13 with the doorstop device of this invention mounted thereon and indicated generally at 14 in FIGS. l and 2. It will be observed in FIG. l that the doorstop device 14 is positioned on the wall 13 to prevent the doorknob 11 from striking the wall 13.

The doorstop device 14 FIG. 3 comprises a housing 16, a resilient element 17, a back plate 18, a split ring 19 and a Phillips head mounting screw 21.

More specifically, the housing 16 (FIG. 3), stamped from aluminum or like material, is disc-shaped with an outwardly projecting flange 22 formed about the periphery thereof. An opening 23 is formed in the center of the housing 16 and the portion 24 of the housing 16 adjacent thereto is offset, as shown in FIG. 4. An annular groove 26 is formed in the inner-surface of the flange 22 as best shown in FIGS. 3 and 5.

The resilient member 17 (FIG. 3), formed from neoprene or like material, has a hemispherical top section 27 and a base section 28 integral therewith. The diameter of the base section 28 exceeds the diameter of the opening 23, while the diameter of the top section is equal to or slightly smaller than the opening 23. The member 17 is mounted in the housing 16, wherein the top section 27 projects through the opening 23 and the base section 28 seats against the inner facing of the housing, as shown in FIG. 4. A cylindrical cavity 29 is formed in the member 17 and extends through the base section 28 to a much smaller passage 31 which extends through the outer sur face of the top section 27. The purpose of the cavity 29 and the passage 31 will be described hereinafter. Integral with the base section 28 is an annular ring 32 which projects outwardly therefrom.

The circularly shaped back plate 18 (FIG. 3) has an aperture 33 formed therein, in Ialignment with the cavity 29 and the passage 31. The portion of the plate 18 adjacent to the passage 33 is recessed to provide a countersunk section 34 for receiving the head of the mounting screw 21. The back plate 18 is mounted in the housing 16 to hold the resilient member 17 therein.

The split ring 19 (FIG. 3), of spring steel which is deformable in a single plane, is removably mounted in the groove 26 of the flange 22 thus clamping the back plate 18 to the housing 16.

A modified embodiment of the doorstop device is Shown in FIG. 6, wherein the parts which are identical to those described hereinabove will be identified with like reference numerals. In some instances the locking device of a door is mounted in the doorknob and projects therefrom. To prevent damage to the locking device a modification in the resilient member 17 is herein provided. The top section 37 of the resilient member 17' is cylindrical in shape and integral with a base section (not shown) that is identical to the base section in FIG. 3. A recess 41 is formed in the top section 37 which will cradle the locking -device (not shown) mounted in the doorknob 11. A passage 31 is formed in the center of the top isection 37 which communicates with the cavity in the base section (not shown).

To assemble the doorstop device 14, the resilient member 17 is inserted into the housing 16, and the Phillips head screw 21 is inserted through the aperture 33 of the 3 back plate 18. The back plate 18, with the screw 21 inserted,n is forced against the annular Vring 32 of the base Isection 28 and the split ring 19 is snapped into the groove 26 of the housing 14.

To mount the doorstop device 14 on the wall 13, the device 14vis positioned on the wall 13 at a point where the doorknob 11 would strike, in the event the door 10 is fully opened. A Phillips head screw driver is forced through the small passage 31 or 31' and into engagement with the screw 21. Upon turning the screw 21 it will be forced into the wall 13 whereupon it secures the doorstop device 14 to the wall. The cavity 29 is provided with a diameter of suflcient :size to permit easy passage of the screw driver therethrough. Upon removing the screw driver from the passage 31 and cavity 29, the portion of the resilient member 17 immediately surrounding the passage 31 will resume its normal position thus not only hiding the screw 21 but also enhancing the ornamental appearance of this doorstop device 14.

Although a preferred embodiment of this invention has been described and disclosed hereinbefore, it is to be remembered that various modifications and alternate constructions can be made thereto without departing from the true spirit and scope of the invention.

I claim:`

1. A doorstop device comprising in combination housing means having an opening formed therein, and having an outwardly projecting ange formed about the periphery thereof;

resilient means mounted in said housing means, said resilient means including a top section which projects through said opening and a base section integral with said top section, said base section having an annular ring integrally formed thereon which projects outwardly therefrom;

back plate means detachably mounted to saidvhousing means to hold said resilient means therein, said back plate means disposed in juxtaposition with said annular ring;

means detachably mounted to said housing means to secure said back plate means thereto; and

securing means coactable with4 said plate means for securing said'backplate means to awall.

2. A doorstop l'device as dened Iin -claiml 1,* wherlein said housing means has an annular Ygroove formed in the inner side of said flange and said meansy comprises a flat element deformable in a single plane said` element removably mounted in said groove.

3. A doorstop -device as -dened in claim 1, wherein said flat element comprises a split ring.

4. A doorstop device as defined in claim 3, wherein saidpresilient `means .hs a passage formed axially therethrough and said plate means has an apertureI ,formed1 therein in `alignment with said passage, said passage and said aperture adapted to receive said securing means.

5. A doorstop device as defined in claim 4, wherein said top section has a recess formed therein, said passage communicable with said recess.

v References Cited UNITED STATES PATENTS Timson -8.8

DONALD A. GRIFFIN, Primary Examiner 

